Robert Alda (February 26, 1914 – May 3, 1986) born Alfonso Giuseppe Giovanni Roberto D'Abruzzo, was an American actor. He was the father of actor Alan Alda.

Robert Alda's career began in vaudeville, as a singer-dancer. Graduating to performing on radio and in burlesque, he made a splashy film debut as George Gershwin in Rhapsody in Blue (1945). His film career faltered somewhat after that, but he had much greater success on the Broadway stage in such productions as "Guys and Dolls" and "What Makes Sammy Run." Settling in Rome in the early 1960s, he appeared in many Italian and European films over the next 15 years. While many of them were quite successful in Europe, few made it to the United States. Alda is the father of actor Alan Alda and Antony Alda.